Magneto.



L. JQ FLNT.

MAGNETO.

Mwucmuu min SEPT. 2a. 19H.

1,249,732. @mm1 De@ 11, 191?.

3 SHEETS-SHEiT l.

L. J. FLINT.

MAGNETO.

APPLICATION FILED SEPTJB. i924.

- 1,249,732. Patented De.11,1917.

3 SHEETS-SHEET 2.

MAGNETO.

APPLICATION HLED SEPT. 28, 19H- 1,249,732. Puma Da. 11,191?.

3 SHEETS-SHEET 3 lllllllllllmlillllmllllillIIIIIIJ! j i,

' soA pingofthepole ytips or pieces by the pe-v g A Figs. 2 and 9, with laterally projecting por- ."rLrNT, or DETROIT; iyrrcnreamjnssrenon; rro .GRI'P NUrcoMrnN-Y or cnIcaGo, ILLrNoIs.:fa-loonlonarron.or 'ILLINOIS'.

'tours'v y Y Togtrrlvlftrltoin Concern."

Be `1t lmow1ithat l, Louis J. FLrNT, a

citizen off'the United StatesLresiding at Detroit, in thewcounty of Tayneand State '5l otiwichggan, have invented a certain new Pronnne n provide a simple and advantageous construcdifferentdirectionsg to controlk the opening onedir'ectionorthe other, and especially 2"Q"to,per`fniit t:l1 'circuit .to be broken at thev n- 1carrying outfmy invention in the ainniefrflieieinfset fo'rth Ic'onstruct the dis* ance between'tlie pole rtips at least as great, ntl 1 frablygreaterthan the width ofthe jperipheral 'portion or'portionsof the armaturecor. As'alresult there is no overlapripheralportion or'portions of the armaj lfti1re" ':re brlthe'fcor'e faces, as 'I shall call them.; r

se andffallnfthe same way whetherv the .rotationpofthe rotary member is in one diiangementLmake the core face or faces of appreciab'lyless Widththan the distance betiienithepole pieces or tips, so that there are `small 'air-'spaces or gaps between the' core 'ff'provide ad\ antaig'eous" arrangement-f of d "l'owtension windings Speccation of Letters Patent.

4'end in Fig. l; Fig 51s a Vertical 4section taken 'online nt objects of ltheiiu'ention are to o of magneto to seem-ea high degree ofl :f ettcien'cylg 'teal-range for the' satisfactory operationofthennagneto when rotated 1n ff, oj breaking ofthe circuit with the rotation sainepOint, whenl rotated ilrreverse direc` and ltoisefcure the foregoing and `otherv -resultsina simple and expeditious Consequently the c'urrent'wave will' manier the armature ber etion' ori-the other'. ""fff"` also "i u G, preferably consisting of ahigh*andl4 lowY tensionl winding' oraplurality ofA high;

Patented Dec. 1i,

Application filed September 98, 1914. Serial No. 863,836. I

my present invention;

v"In the accompanying drawings Figurev 1 is a side elevation of a imagnetoembodylng Fig. 2 isa vertical section taken on line @we in rig. e;

Fig. 9 is a vertical section taken on line 3-3 in Fig. 6;

Fig. 4t is an end elevation of the left hand 5-5lin Fig; 6;

Fig. 6 is a horizontal longitudinal section taken on line 6-'7-6 in Fig. 5;

`Fig. v7 is a diagran'nnatic' View showing the circuit arrangements; i Fig. 8 is a diagram of another circuit rangement; and 1 Fig. 9 is a View diagrammatic inl character ofthe field magnets and armature' showing the relative arrangements of the same.

Referring to the drawings I showfa simple form of magnetoinvolving a pair'ofahorse shoe magnets, l and 2, mounted upon a base piece 3. An armaturea is mounted between pole pieces 5 5 and 66 at thelower ends.

of magnets 1 and2, respectively. Connect- "ing members 77` are preferably located loetween the vertical arms of the magnets 1 and 2, and secured to the latter by m-eans of screws`8-8- The armaturea -is preferably vmade with acorehav1ng' end members 9,

tions or tips 9a,'the central or main body portion of the core being surroundedbyjan 'inner winding 10 andan outer winding 1l,

ample, of the pole pieces, wherebyfv-whenfthe armature is in a central' position, asshown 1n Fig. 2, and 1n full hnes'inv Fig.' 9, the core faces Aof vthe armature will not overlap-'the lirection or: the '/otherl" Thefinner winding lO-isv preferablyfafiprimary Windmg andthe .outer windingezll a s thesame,;be1`the armature. rotated inone' fully set forth hereinafter.v These windings.

are suitably connected'and-the magneto p rovidedwith suitable mechanism so that the current ymay be properlyT broken and led off in suitable. manner, as for example to the spark vice.

lThe armature is provided at its rightl hand end Fig. 6) with a casing member or end 12 having anannular flange 14. Within the member 12 is located a condenser 15 which is conveniently securedy to .the right' .hand end of the armature with 'a metallic condenser strap' 16 between. This condenser 15 is made in any suitable way, being preferably made of a number of :line windings' arranged or wound inductivelywith refer- -ence .to one another and inclosed in suitable insulating material such assilk or mica. The cas1ng` member 12 carrles'a hub portlon 17 which 1nv turn carries 'a ball race 18 forming part of a` ball bearing, having balls 19 and an outer ball race 20. Insulating I'na- Y are arranged 'at the right hand end .of the sulating material 27 being interposed be- 35.y isarranged outside ofthe outer cup 26 and is provlded with two projections or magneto as shown in-Fig. 6, thse cups with coperating and associated parts forming thecircuit breaker of themagneto.. These two cups 25 and 26' are secured to the end ofthe hub 17 so as to rotate therewith,`in

tween said cups. The ,inner cup 25. carries a contact `28 (Fig.5). and the outer cup 26.

is provided with a flange 29Aforming with the back wall of the cup, a support or bearing for a pin 30 which forms a pivotalsupport 'for an arm 31 having one of its ends provided with a contact 32 arranged-to cooperate with the `contact 28 on the cup 25.-

A` spring 33'iscarried by the cup 26 and arranged in engagement with the .arm 31 whereby said spring normally .tends to hold, z said arm in position to cause the engagement of Contact 32 with contact 28. IA ring cams 36, 36 (Figs. 5 and 6), vsaid cams bei -in'g conveniently inserted in recesses formed in' said ring. v, The cups 25 -and 26, it will be seen, rotate with the armature but'the ring 36 is statlonary so that the cams 36-36 are held against rotation, and consequently lthe rotation ofthe' cups carrying with them lthe arm 31 causes the actuation of the latter by means yof the'roller 37 at -one end thereof,so that-said arm 31 is `actuated by after. v(Fig. 5) formed in sald ring and also 1nto plug' of an 'automobile or 'other de an aperture formed 1in the frame. immediately surrounding said ring. This pin 38 is made removable so that it may be with drawn, therebyI permittingfthe ring 35 to be .shifted or turned` at will so 'as to place the cams 36.-,'36 at different positions with i y relation to the armature; but this construction is used only when spark advance iside- Sir'ed. -Shifting the position of .the ring, hence the cams, varies.iii-etlme-of'break alongthe wave. The slot allows the cain ring to turn or shift under the action Qfthe breaker. lever striking the cam points. Thus 'l the-shift of the ring will correct any `error of the cam points and allow breaking the" circuit4 at the-same point on the wave for either direction of rotation.

An-outer casing member 40 1s arranged .I

outside of the devices just described, so as to inclose the same, thls casing being secured to the poles and base piece of the machine. 'A terminal 41 is secured to the casing 40,

said terminal having a central screw threadedmemb'er or A'pin' 42 which extends through thel -casing 40 vand makes contact with a threaded spindle. 43' onrthe end of the spin- A- nut' 44 is arranged. upon the threaded spindle. 43, said nut being 'adapted to'hold the inner cup 25 in position.

end lof the threaded spindle 42, said nut- 45 :Another nut 45 is mounted upon the inner being adapted tohold the spindle 42 in posit'io'n,` insulating material '46 being interposed between the nut 45 and the casing 40.

At the other or left hand end of the arma.-

ture is located a `distributingdevice. yThis distrlbutlng device comprises a rotary' ring.

or collector 48 mounted-.upon the. axle or shaft 49, supporting the., armature. v This. ring 48 has a. V shaped groove 50, in which are arran ed brushes 51 contacting with the inner sur ace of the groove. -These brushes 5 1'are mounted in sockets 52 -formed in-lat-- eral projectlons 53 in posts 54 'mounted at the sides of the armature, as shown in Fig.

3. Springs 55 are arranged within the- I sockets 52, saidA springs tending normally to .push the brushes 5.1 into position'to make.

ing or otherwise. Screiysi are also shown passing throughthe wallsvof the posts 54 .from the sockets 52 tNhe sockets '56, so that sald'screws maybe engaged with the conductors inserted into the sockets The posts 54am supported by screws 58passing Vthrough their lower ends and into blocks 59.

YThe distributer ring 48 is divided into two parts'48 vand'48", (Fig. 3), separated by 1nsulationGO. The part 48awvhich is subwith one 'of' the windings, asv for example stantially halfof the ring is for connection the outer winding 11, as by a. rod or pin 60a, (Figs. 3.and 6.) The part 48b which is' also substantially-half of the ring, is an insulayother brush 51. A lsecondary is "distributediirst to one brush tion casting such that when' 48a is in electrical contact with one brush 51, the4 insulated part or segment 48?, is in contact with the Thus the current from the and then to the other, bythe rotation of 48a. An end or casing member 60 is arranged loutside of the ring 48 and arball bearing 60c located ywithin lthe same.

The condenser is vconnected by means of a conductor 6l (Fig.if2,) Aone end of which runs -to a conf 'denserterminal 62` and the other end of which yruns'to an arm 63, from which con- Vnection is made to ground or one side of the machine. The other condenser terminal 64 is connected by a conductor 65 with a clip 66 on the ring 12, whence connection is madeibya'brush 67 to a terminal or post v 68 mounted on the "top cross piece 69. The

Figs. 7 land 8. Referring first to Fig. 8, the distributer ring is shown at 48 and the brushes 51`51 in contact therewith. From thesefbrushes conductors 71 and 72 run to spark plugs 73 and 74, respectively, the lat-- ter being connected to ground by conductors 75 and 76. Connection between the secondary winding and the ring segment 48a is indicated by conductor 77, the same extending to and being connected with said ring segment 48al by means of pin 60a. The other side of the secondary winding 11 is connected to ground by a conductor '78. The primary winding 10 is shown connected at one end to ground by a conductor 7 9 whence another conductor 80 also extends from ground to a terminal 81` between which and the conductor 77 a safety gap 82 is placed. The other end of the primary winding 10 is connected with a conductor 83 which extends to the condenser 15, and thence to the binding post 70, whence a connection 84 runs to ground. A conductor 85 runs from the condenser 15 to the cir-cuit breaker 28, 32, and thence to tlief'binding post 41, a conductor 86 extending topnnection 83Il between con-V denser 15 andgpost 70. A control circuit 87 is shown contfiiningh'alswitch 88 under the control of the' foperator. v

In the arrangement of Fig; 7 the circuit connections aresubstantial-ly the same, but instead of having two spark plugs only one is shown with a single conductor 71 running to the same, which is number 73, there being but the one connection to the distributer ring 48.

By adjusting the circuit breaker it will be seen as by referring particularly to Figs. 5 and 9, that the circuit will be broken at a more or less advanced position in thecurrent' wave, and this will be true no matter whether the machine lbe run lin one direction vor the other. The'adjustment of the circuit breaker may be done as desired, advancing or retarding the opening of the circuit in any desired way by shifting the ring 35 in one direction or the other to the desired extent.

It will be seen further that inasmuch. as the armature core does not overlap the pole pieces and consequently the current 5 wave risesand falls in the same way, be the armature rotated in' one direction or the other,

it will follow that the circuit opener will open the circuit in the same way or at the' same point when in the same position of adjustment with the machinerotated in one direction or the other. It will also be seen that by the winding arrangement a high degree of efficiency and effectiveness is secured,

' Awith great strength of spark.

, It will be understood that changes and. modifications may be made without departing from the spirit of the invention.

What I claim is:

1. In a magneto, circuit breaking mechanism comprising in combination, `a ring provided with cams, a pair of separable contacts, means for rotating said contacts, and means whereby thevrotation of saidcontacts causes a-separat-ion ofthe same by. said cams.

loo

2. In a magneto, circuit breaking mechay nism comprising in combination, a ring provided with cams` apair of separable con-I tacts, means for rotating said contacts, and means whereby the rotation of said con- .tacts causes a separation of the same by said cams, said means comprising a pivotally mounted arm carrying one of said contacts and having an end adapted to strlke against l said cams when saidA arm is rotated.

`3. In a magneto, circuit breaking mechanism comprislng m comblnation, a ring prolids vided with cams, a pair of separable conl tacts, means for rotating said contacts, means whereby the rotation of said contacts causes a separation of the same by said cams, and means whereby said ring may be adjusted to secure an adjustment of said cams. A 4. In a magneto, circuit breaking mechanism comprising in combination, a ring provided withcams, a pair of separable contacts, means for rotating said contacts, means whereby the rotation of said contacts causes a separation of the same by said cams, and means whereby said ring may be adjusted to secure an adjustment of said cams, said ring being provided with a pe' .ripheral recess adapted to receive a pin `for holding said ring in adjusted position.

5. In a magneto,.circuit openings-mechas' nismcoinprising a rlng carrying a pair ofdiametrlcally. located cams projecting 1n- .Wardlyifroni said ring, a pairv of cups car Iiedby the magneto armature, one of said cupsb'eing provided with a contact and the other. with .a pivotally mounted arm having a contact coperating with said Jfirst mentioned contact, the other end of said arm being adapted to strike against said 'cams when saidcups are rotated by the rotation of the armature. v Y 1 `-6. In a magneto, the combination with th armature and magnet poles constructed to.'

.produce like current waveswhen' the arma'- lture is rotated in either direction, of cir#- f cuit4 breaking mechanism adapted to. break vthe .circuit at the same point in the current Wave -when the armature` is rotated in either direction;

rection, said mechanism comprising a pair.

of separable contacts carried by the armature, and means for separating said contacts at the same points when the armature is ro tated in one direction or the other.

,A 8. Inl a magneto, ycircuit breaking apparatus comprising means for breaking the circuit at the same points when the armature isrotated in one direction or the other. f- 9. In a magneto, the combination with the armature and magnetpole pieces, the latter.

being separated a distance greater than the width or' the core faces of the armature, of circuit breaking mechanism comprising sepa-4 rable contacts, andv means forv separating the same at the same points in the rotation in either direction.' 4

, 10.' A magneto' comprising in combmatlon,

of said field magnets being separated from one another a distance greater than the- Y width of the core faces of the, armature,tand

of the core'faces of the armature, and high and low tension windings on said armature,

said armature having.- a diametrically arranged core and laterally-projecting end portions forming the core faces, and said windings beingaround said core between the projecting ends thereof.

l2. In a magneto, the combination-of a ring for an elongated slot, in combination with a pin adapted to it in said slot, said ring being provided with cams, and a circuit breaking arrangement rotating with the armature and having a .device adapted to coperate with said cams.-

In witness whereof, I hereunto subscribe my namethis 11th day of Sept. A. D., 1914.-.

' LOUIS J. FLINT.-

Witnesses:

J. W. CUDDY, W. C. Coon.

.of the armature when the latter is rotated `an armature and field magnets, the pole tips 

